Study with our courses and learn math once and for all: https://praticandomatematica.com/perp... I know you like descriptions. Hey student! In this class, I'll show you the importance of basic math and contest questions so you can ace math wherever you need to. I hope you like it. QUESTIONS A tank is fed by two taps. The first can fill it in 6 hours and the second in 4 hours. How long will it take for both taps together to fill the tank? (A) 2 h (B) 4h and 30min (C) 2h and 24 min (D) 5 h. The sides of a rectangle measure 4 meters and 9 meters, respectively. How long is the side of the square whose area is equal to that of this rectangle? (A) 24 m (B) 36 m (C) 6 m (D) 13 m A reservoir has the shape of a rectangular parallelepiped and its measurements are 5 meters long, 3 meters wide and 2 meters deep. Its capacity is: (A) 30,000 liters (B) 3,000 liters (C) 300 liters (D) 30 liters Consider that the port guard Pedro replaced Carlos, who had health problems, for 12 days and, each day, for 2 hours and 25 minutes. In this situation, for Carlos to repay Pedro for the same amount of time worked, he must replace him for how many hours? a) 28 h. d) 31 h. b) 29 h. e) 32 h. c) 30 h. One of the water tanks in a building measures 1.5 m long, 8 dm wide and 120 cm high. The number of liters of water it holds is: a) 129.5. d) 1,440. b) 144. e) 2,880. c) 1,295. For what value of m are the equations: x – 2(1 – x) = 2x – 3 and mx = 2 equivalent? a) 1. d) – 2. b) –1. e) 0. c) 2. The root of the equation 6(x – 3) – 9(x – 5) = x – 1 is: a) 5. d) 15. b) 4. e) 18. c) 7. Four employees of a company are able to serve, on average, 52 people per hour. Given this, it is expected that six employees, with the same operational capacity as the first ones, will be able to serve an average of: a) 72 people per hour. d) 82 people. b) 75 people. e) 85 people. c) 78 people. Of the 500 students in a school, 32% like studying mathematics and 28% like Portuguese. The number of students who like other subjects is: a) 160. d) 260. b) 140. e) 300. c) 200. ELEMENTARY EDUCATION ★6TH GRADE: https://goo.gl/LuAkGU ★7TH GRADE: https://goo.gl/vAAbkv ★8TH GRADE: https://goo.gl/y8G3ym ★9TH GRADE: https://goo.gl/Z6ejmE HIGH SCHOOL ★1ST GRADE: https://goo.gl/H3Yihj ★2ND GRADE: https://goo.gl/zd5vfh ★3RD GRADE: https://goo.gl/L6GfVN COMPETITIONS AND ENTRANCE EXAMS ★ENEM: https://goo.gl/PjcFDS ★ MATHEMATICS FOR COMPETITIONS : https://goo.gl/B1S6TM ★PM-SP : https://goo.gl/hyuBgz ★CP2 : https://goo.gl/3q1Trc ★TECHNICAL SCHOOLS : https://goo.gl/Mw8cSM ★UNICAMP : https://goo.gl/bpMEbY ★LOGARITHMS : https://goo.gl/9vKuK2 ★QUADRATIC FUNCTION : https://goo.gl/WEPoF9 ★EsA : https://goo.gl/RGvgrX ★ EEAR : https://goo.gl/2EH5M2 ★Challenges : https://goo.gl/PSzMXj ★ System of Equations : https://goo.gl/1BZByJ ★ Parodies : https://goo.gl/tbFCoU ★FAETEC RJ : https://goo.gl/XSs77y ★NOTABLE PRODUCTS : https://goo.gl/yyJaH4 ★CLASSIC QUESTIONS : https://goo.gl/qCuYTL ★ALGEBRAIC EXPRESSIONS : https://goo.gl/SCJHCh __________________SOCIAL NETWORKS _________________________________ ★Facebook : https://goo.gl/6tXEd3 ★Instagram : https://goo.gl/o8JU4d ★Twitter : https://goo.gl/cXguie